2025年12月12日 · What is an acid, as defined in chemistry? An acid is any substance that in water solution tastes sour, changes blue litmus paper to red, reacts with some metals to …

ACID definition: a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an …

The meaning of ACID is a sour substance; specifically : any of various typically water-soluble and sour compounds that in solution are capable of reacting with a base to form a salt, redden …

The definition of an acid has changed as people discovered more about chemistry. Acids were originally grouped together by their properties: they taste sour, change the color of litmus …

Basic rocks with no quartz tend to be dark-colored, while acid rocks are much lighter. The solid matter ejected by a volcano covers all rock compositions from basic to acid.

Definition of acid noun from the Oxford Advanced American Dictionary. a chemical, usually a liquid, that contains hydrogen and has a pH of less than seven. The hydrogen can be replaced …

2025年7月30日 · Acids are defined by their behavior in solution. One common definition, known as the Brønsted-Lowry theory, describes an acid as a substance capable of donating a proton, …

1. Chemistry a. Of, relating to, or containing an acid. b. Having a high concentration of acid. c. Having the characteristics of an acid. 2. a. Having a pH of less than 7. b. Having a relatively …

2023年2月14日 · In chemistry, an acid is a chemical species that donates hydrogen ions or protons or accepts an electron pair. Acids react with bases and some metals via a …

An acid is a molecule or ion capable of either donating a proton (i.e. hydrogen cation, H+), known as a Brønsted–Lowry acid, or forming a covalent bond with an ...